|Casting Time||1 action (Ritual)|
|Components||V S M (Yew leaf)|
|Duration||Conc. Up to 10 minutes|
If they exist or appear within 30 feet, you sense the presence of poisons, poisonous creatures, and diseases. Their location and type also become known to you.
This spell is blocked by 1 foot of stone, 1 inch of common metal, a thin sheet of lead, or 3 feet of wood or dirt.